CN103944720A - Method for synchronizing time of dynamic token - Google Patents
Method for synchronizing time of dynamic token Download PDFInfo
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- CN103944720A CN103944720A CN201410138069.0A CN201410138069A CN103944720A CN 103944720 A CN103944720 A CN 103944720A CN 201410138069 A CN201410138069 A CN 201410138069A CN 103944720 A CN103944720 A CN 103944720A
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Abstract
The invention discloses a method for synchronizing time of a dynamic token. The method comprises that steps that a client side sends out a time synchronization request of the dynamic token to a dynamic token authentication server, wherein identification information of the dynamic token or the identification information of a user of the dynamic token is carried in the time synchronization request; the dynamic token authentication server searches for a seed secret key corresponding to the dynamic token in a database of the dynamic token authentication server according to the identification information of the dynamic token or the identification information of the user of the dynamic token in the time synchronization request, the dynamic token authentication server calculates verification information according to the found seed secret key and the current time of the dynamic token authentication server and by using a message verification algorithm, and the verification information obtained by the dynamic token authentication server through calculation and the current time of the dynamic token authentication server are packaged to generate response information. The method for synchronizing the time of the dynamic token can solve the technical problems that after clock drift happened to the existing dynamic token, the dynamic token needs to be sent back to a factory or a server end to be handled, and the service life of the dynamic token and user experience are influenced.
Description
Technical field
The invention belongs to secure authentication technology field, more specifically, relate to a kind of method that makes dynamic token time synchronized.
Background technology
Along with the develop rapidly of the application system such as E-Government, ecommerce, dynamic password technology is the effective means of static password as an alternative, because it is easy to use, can strengthen fail safe, dynamic cipher system is widely applied.
Dynamic password is disposal password, and each password can only use once, and it constantly changes along with the variation of time or access times.Dynamic token is the electric terminal equipment for generation of dynamic password, the built-in process chip of this equipment, display screen, and equipment component is with key device.Dynamic token uses seed key to generate dynamic password according to the value of current time or event counter.Seed key is for the time to input or event counter is encrypted or HMAC operation, by exporting 6-8 bit digital after transform operation (normally modular arithmetic) to display screen, as dynamic password.
Existing is mainly to adopt dynamic token by the mode that hardware produces dynamic password, wherein, dynamic token based on time synchronized (so-called " time synchronized " refers to that dynamic password that user's dynamic token and certificate server produce in time must be synchronously) is widely used at present, its time is as the variation factor, generally using 60 seconds as change unit.But due to the operational environment difference of dynamic token, in magnetic field, high temperature, high pressure, shake, enter dynamic token in the situations such as water and easily occur uncertain skew and the damage of clock pulse.For the dynamic token that loses time synchronized, often need to return factory or send server end back to and process, affect like this useful life of dynamic token and user's experience.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of method that makes dynamic token time synchronized, its object is, solving existing dynamic token is occurring after clock skew, need to return factory or send server end back to and process, thereby affecting the technical problem that dynamic token useful life and user experience.
For achieving the above object, according to one aspect of the present invention, provide a kind of method that makes dynamic token time synchronized, comprised the following steps:
(1) client is sent the time synchronized request of dynamic token to dynamic token certificate server, carries this dynamic token or this dynamic token user's identification information in this time synchronized request;
(2) dynamic token certificate server searches according to this dynamic token in time synchronized request or this dynamic token user's identification information the seed key that this dynamic token is corresponding in its database;
(3) seed key that dynamic token certificate server basis finds and the current time of this dynamic token certificate server are also used message authentication algorithm calculation check information;
(4) the current time packing of the check information calculating and dynamic token certificate server is generated echo message by dynamic token certificate server, and this echo message is sent to client;
(5) client is injected into the echo message of receiving in dynamic token, and according to the seed key in dynamic token, the echo message injecting is verified.
Preferably, the sequence number that the identification information of dynamic token is dynamic token, dynamic token user's identification information is this token user's account, and the binding of the sequence number of this account and dynamic token.
Preferably, the message authentication algorithm using comprises hash algorithm, MAC algorithm and hmac algorithm.
Preferably, packing manner can adopt the current time of dynamic token certificate server and the mode of check information direct splicing, or adopt by the current time of dynamic token certificate server and check information according to certain format coding after the mode of splicing, or adopt the mode that the current time of dynamic token certificate server is spliced with check information after according to certain format coding.
Preferably, step (5) specifically comprises following sub-step:
(5-1) client is injected into the echo message of receiving in dynamic token;
(5-2) dynamic token is according to the seed key of storing in the current time of dynamic token certificate server in echo message and this dynamic token and use message authentication algorithm calculation check information, and the message authentication algorithm that wherein used is identical with the middle corresponding message authentication algorithm of above-mentioned steps (3).
(5-3) dynamic token compares the check information comprising in the check information obtaining in step (5-2) and echo message, if the two is identical, by the current time of the current time Regeneration dynamics token of the dynamic token certificate server comprising in echo message, if the two difference, process finishes.
Preferably, in step (5-1), the mode of injecting echo message can be online automatic injection, also can manually inject for off line, in online automatic injection process, dynamic token has external interface and is connected with client, obtain echo message by external interface from client, in the manual injection process of off line, under the off-line state of dynamic token, by user's viewing client-side, and the echo message that client is received is manually input in dynamic token.
According to another aspect of the present invention, a kind of system that makes dynamic token time synchronized is provided, comprising:
The first module, it is arranged in client, for send the time synchronized request of dynamic token to dynamic token certificate server, carries this dynamic token or this dynamic token user's identification information in this time synchronized request;
The second module, it is arranged in dynamic token certificate server, for searching according to this dynamic token of time synchronized request or this dynamic token user's identification information the seed key that this dynamic token is corresponding in its database;
The 3rd module, it is arranged in dynamic token certificate server, and the seed key finding for basis and the current time of this dynamic token certificate server are also used message authentication algorithm calculation check information;
Four module, it is arranged in dynamic token certificate server, for the current time packing of the check information calculating and dynamic token certificate server is generated to echo message, and this echo message is sent to packing client;
The 5th module, for the echo message of receiving is injected into dynamic token, and verifies the echo message injecting according to the seed key in dynamic token.
Preferably, the 5th module specifically comprises following submodule:
The first submodule, it is arranged in client, for the echo message of receiving is injected into dynamic token;
The second submodule, it is arranged in dynamic token, be used for according to the seed key of storing in the current time of echo message dynamic token certificate server and this dynamic token and use message authentication algorithm calculation check information, the message authentication algorithm that wherein used is identical with message authentication algorithm corresponding in above-mentioned the 3rd module;
The 3rd submodule, it is arranged in dynamic token, the check information comprising for check information that the second submodule is obtained and echo message compares, if the two is identical, by the current time of the current time Regeneration dynamics token of the dynamic token certificate server comprising in echo message, if the two difference, process finishes.
In general, the above technical scheme of conceiving by the present invention compared with prior art, can obtain following beneficial effect:
(1) method of the present invention can be by the on-line synchronous that realizes alternately the dynamic token time between client and dynamic token certificate server, even therefore after dynamic token generation clock skew, do not need return factory or send server end back to and process, thereby can not affect useful life of dynamic token and user experiences yet.
(2) method of the present invention can provide online automatic injection echo message or off line manually to inject echo message, thereby facilitates the time of user's Regeneration dynamics token, improves the convenience that dynamic token uses.
(3) method of the present invention utilizes the seed key of dynamic token self to carry out calculation check information, thereby has improved the fail safe in Regeneration dynamics token time course.
Brief description of the drawings
Fig. 1 is the flow chart that the present invention makes the method for dynamic token time synchronized.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.In addition,, in each execution mode of described the present invention, involved technical characterictic just can combine mutually as long as do not form each other conflict.
As shown in Figure 1, the present invention comprises the following steps the method for dynamic token time synchronized:
(1) client is sent the time synchronized request of dynamic token to dynamic token certificate server, in this time synchronized request, carry this dynamic token or this dynamic token user's identification information, the identification information of dynamic token is the sequence number of dynamic token, dynamic token user's identification information is this token user's account, and the binding of the sequence number of this account and dynamic token;
(2) dynamic token certificate server searches according to this dynamic token in time synchronized request or this dynamic token user's identification information the seed key that this dynamic token is corresponding in its database;
(3) seed key that dynamic token certificate server basis finds and the current time of this dynamic token certificate server are also used message authentication algorithm calculation check information; Particularly, the message authentication algorithm using comprises hash algorithm, Message Authentication Code (Message authentication code, be called for short MAC) algorithm and the Message Authentication Code based on hash function structure (Hash-based message authentication code is called for short HMAC) algorithm;
(4) the current time packing of the check information calculating and dynamic token certificate server is generated echo message by dynamic token certificate server, and this echo message is sent to packing client; Particularly, packing manner can adopt the current time of dynamic token certificate server and the mode of check information direct splicing, or adopt by the current time of dynamic token certificate server and check information according to certain format coding (such as Base64, ASCII coding etc.) after the mode of splicing, or adopt the mode that the current time of dynamic token certificate server is spliced with check information after according to certain format coding (such as Base64, ASCII coding etc.).Never be confined to above-mentioned packing manner but should understand the present invention, existing any information package mode all can be used.
(5) client is injected into the echo message of receiving in dynamic token, and according to the seed key in dynamic token, the echo message injecting is verified; This step specifically comprises following sub-step:
(5-1) client is injected into the echo message of receiving in dynamic token; Particularly, the mode of injecting echo message can be online automatic injection, also can manually inject for off line, and in online automatic injection process, dynamic token has external interface and is connected with client, obtains echo message by external interface from client; In the manual injection process of off line, under the off-line state of dynamic token, by user's viewing client-side, and the echo message that client is received is manually input in dynamic token;
(5-2) dynamic token is according to the seed key of storing in the current time of dynamic token certificate server in echo message and this dynamic token and use message authentication algorithm calculation check information; The message authentication algorithm using is identical with message authentication algorithm corresponding in above-mentioned steps (3).
(5-3) dynamic token compares the check information comprising in the check information obtaining in step (5-2) and echo message, if the two is identical, represent being verified of seed key of dynamic token, and by the current time of the current time Regeneration dynamics token of the dynamic token certificate server comprising in echo message, if the two difference, the checking that represents the seed key of dynamic token is not passed through, and process finishes.
The present invention comprises the system of dynamic token time synchronized:
The first module, it is arranged in client, for the time synchronized request of sending dynamic token to dynamic token certificate server, in this time synchronized request, carry this dynamic token or this dynamic token user's identification information, the identification information of dynamic token is the sequence number of dynamic token, dynamic token user's identification information is this token user's account, and the binding of the sequence number of this account and dynamic token;
The second module, it is arranged in dynamic token certificate server, for searching according to this dynamic token of time synchronized request or this dynamic token user's identification information the seed key that this dynamic token is corresponding in its database;
The 3rd module, it is arranged in dynamic token certificate server, and the seed key finding for basis and the current time of this dynamic token certificate server are also used message authentication algorithm calculation check information; Particularly, the message authentication algorithm using comprises hash algorithm, Message Authentication Code (Message authentication code, be called for short MAC) algorithm and the Message Authentication Code based on hash function structure (Hash-based message authentication code is called for short HMAC) algorithm;
Four module, it is arranged in dynamic token certificate server, for the current time packing of the check information calculating and dynamic token certificate server is generated to echo message, and this echo message is sent to packing client; Particularly, packing manner can adopt the current time of dynamic token certificate server and the mode of check information direct splicing, or adopt by the current time of dynamic token certificate server and check information according to certain format coding (such as Base64, ASCII coding etc.) after the mode of splicing, or adopt the mode that the current time of dynamic token certificate server is spliced with check information after according to certain format coding (such as Base64, ASCII coding etc.).Never be confined to above-mentioned packing manner but should understand the present invention, existing any information package mode all can be used.
The 5th module, for the echo message of receiving is injected into dynamic token, and verifies the echo message injecting according to the seed key in dynamic token; This module specifically comprises following submodule:
The first submodule, it is arranged in client, for the echo message of receiving is injected into dynamic token; Particularly, the mode of injecting echo message can be online automatic injection, also can manually inject for off line, and in online automatic injection process, dynamic token has external interface and is connected with client, obtains echo message by external interface from client; In the manual injection process of off line, under the off-line state of dynamic token, by user's viewing client-side, and the echo message that client is received is manually input in dynamic token;
The second submodule, it is arranged in dynamic token, for according to the seed key of storing in the current time of echo message dynamic token certificate server and this dynamic token and use message authentication algorithm calculation check information; The message authentication algorithm using is identical with message authentication algorithm corresponding in above-mentioned the 3rd module.
The 3rd submodule, it is arranged in dynamic token, the check information comprising for check information that the second submodule is obtained and echo message compares, if the two is identical, represent being verified of seed key of dynamic token, and by the current time of the current time Regeneration dynamics token of the dynamic token certificate server comprising in echo message, if the two difference, the checking that represents the seed key of dynamic token is not passed through, and process finishes.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a method that makes dynamic token time synchronized, is characterized in that, comprises the following steps:
(1) client is sent the time synchronized request of dynamic token to dynamic token certificate server, carries this dynamic token or this dynamic token user's identification information in this time synchronized request;
(2) dynamic token certificate server searches according to this dynamic token in time synchronized request or this dynamic token user's identification information the seed key that this dynamic token is corresponding in its database;
(3) seed key that dynamic token certificate server basis finds and the current time of this dynamic token certificate server are also used message authentication algorithm calculation check information;
(4) the current time packing of the check information calculating and dynamic token certificate server is generated echo message by dynamic token certificate server, and this echo message is sent to client;
(5) client is injected into the echo message of receiving in dynamic token, and according to the seed key in dynamic token, the echo message injecting is verified.
2. method according to claim 1, is characterized in that, the sequence number that the identification information of dynamic token is dynamic token, and dynamic token user's identification information is this token user's account, and the binding of the sequence number of this account and dynamic token.
3. method according to claim 1, is characterized in that, the message authentication algorithm using comprises hash algorithm, MAC algorithm and hmac algorithm.
4. method according to claim 1, it is characterized in that, packing manner can adopt the current time of dynamic token certificate server and the mode of check information direct splicing, or adopt by the current time of dynamic token certificate server and check information according to certain format coding after the mode of splicing, or adopt the mode that the current time of dynamic token certificate server is spliced with check information after according to certain format coding.
5. method according to claim 1, is characterized in that, step (5) specifically comprises following sub-step:
(5-1) client is injected into the echo message of receiving in dynamic token;
(5-2) dynamic token is according to the seed key of storing in the current time of dynamic token certificate server in echo message and this dynamic token and use message authentication algorithm calculation check information, and the message authentication algorithm that wherein used is identical with the middle corresponding message authentication algorithm of above-mentioned steps (3).
(5-3) dynamic token compares the check information comprising in the check information obtaining in step (5-2) and echo message, if the two is identical, by the current time of the current time Regeneration dynamics token of the dynamic token certificate server comprising in echo message, if the two difference, process finishes.
6. method according to claim 1, is characterized in that,
In step (5-1), the mode of injecting echo message can be online automatic injection, also can manually inject for off line;
In online automatic injection process, dynamic token has external interface and is connected with client, obtains echo message by external interface from client;
In the manual injection process of off line, under the off-line state of dynamic token, by user's viewing client-side, and the echo message that client is received is manually input in dynamic token.
7. a system that makes dynamic token time synchronized, comprising:
The first module, it is arranged in client, for send the time synchronized request of dynamic token to dynamic token certificate server, carries this dynamic token or this dynamic token user's identification information in this time synchronized request.
The second module, it is arranged in dynamic token certificate server, for searching according to this dynamic token of time synchronized request or this dynamic token user's identification information the seed key that this dynamic token is corresponding in its database;
The 3rd module, it is arranged in dynamic token certificate server, and the seed key finding for basis and the current time of this dynamic token certificate server are also used message authentication algorithm calculation check information;
Four module, it is arranged in dynamic token certificate server, for the current time packing of the check information calculating and dynamic token certificate server is generated to echo message, and this echo message is sent to packing client;
The 5th module, for the echo message of receiving is injected into dynamic token, and verifies the echo message injecting according to the seed key in dynamic token.
8. system according to claim 1, is characterized in that, the 5th module specifically comprises following submodule:
The first submodule, it is arranged in client, for the echo message of receiving is injected into dynamic token;
The second submodule, it is arranged in dynamic token, be used for according to the seed key of storing in the current time of echo message dynamic token certificate server and this dynamic token and use message authentication algorithm calculation check information, the message authentication algorithm that wherein used is identical with message authentication algorithm corresponding in above-mentioned the 3rd module.
The 3rd submodule, it is arranged in dynamic token, the check information comprising for check information that the second submodule is obtained and echo message compares, if the two is identical, by the current time of the current time Regeneration dynamics token of the dynamic token certificate server comprising in echo message, if the two difference, process finishes.
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| CN107425977A (en) * | 2017-04-28 | 2017-12-01 | 北京海泰方圆科技股份有限公司 | Dynamic token method for synchronizing time and device |
| CN111126533A (en) * | 2020-01-08 | 2020-05-08 | 牛津(海南)区块链研究院有限公司 | Identity authentication method and device based on dynamic password and dynamic token |
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